/*
 * Copyright (C) 2009, 2010, B3log Team
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.b3log.nide.util.parser.java.source;

/**
 * TODO: javadoc.
 *
 * @author <a href="mailto:DL88250@gmail.com">Liang Ding</a>
 * @version 1.0.0.0, Nov 12, 2010
 */
public enum Literals {

    /**
     * {@code null}.
     */
    NULL("null");
    /**
     * Literal itself.
     */
    private String literal;

    /**
     * Gets the string of this literal.
     *
     * @return string of this literal
     */
    @Override
    public String toString() {
        return literal;
    }

    /**
     * Constructs a literal enumeration.
     *
     * @param literal literal itself
     */
    Literals(final String literal) {
        this.literal = literal;
    }
}
